Meaning of the word hypersomnia in English

What does hypersomnia mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

hypersomnia

US /ˌhaɪ.pɚˈsɑːm.ni.ə/
UK /ˌhaɪ.pəˈsɒm.ni.ə/

Noun

a condition characterized by excessive daytime sleepiness or prolonged nighttime sleep, despite adequate sleep opportunity

Example:
Patients with hypersomnia often struggle to stay awake during the day.
Her constant fatigue was eventually diagnosed as hypersomnia.